Home / 55,979.96-77,252.40-30,486.36

Finding the Fourth Proportional to 55,979.96, 77,252.40 and 30,486.36

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Solution

The fourth proportional to 55,979.96, 77,252.40 and 30,486.36 is: 42,071.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,979.96 : 77,252.40 = 30,486.36 : x
  2. Step 2: Convert to fraction form
    55,979.96/77,252.40 = 30,486.36/x
  3. Step 3: Cross multiply
    55,979.96x = 77,252.40 × 30,486.36
  4. Step 4: Simplify right side
    55,979.96x = 2,355,144,477.26
  5. Step 5: Solve for x
    x = 2,355,144,477.26/55,979.96
  6. Step 6: Final answer
    x = 42,071.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.